Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5170640 | Oil separator | Erric L. Heitmann, David N. Shaw, Michael G. Field | 1992-12-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5170640 | Oil separator | Erric L. Heitmann, David N. Shaw, Michael G. Field | 1992-12-15 |